Cyberduck is a free program (Windows and macOS) with which you can connect to SFTP, FTP, WebDAW, and many other cloud storage platforms.
You can use it also for transferring files from your Z drive to your home computer.
Get the latest version from Cyberduck homepage https://cyberduck.io/ and install it on your computer.
You can get Cyberduck instructions from the program's support page: https://docs.cyberduck.io